qThis book is a catalog of special devices or aids and appliances for the blind that were reported as being available for purchase from manufacturers around the world at the end of 1972.q Printed in large type for use of blind persons, as well as for agencies serving them. Topical arrangement. Entries include distributor, availability, price, catalog number, and description. Includes Sources of aids and appliances (with addresses), geographically arranged.(Designed as secondary aid for long cane or dog guide users.) ... Light sensor is on 3-foot cord which may be fastened to finger with ring or rubber band, so hand will be left free to function while using probe ... Protection is given thereby to upper half of cane- traveler, s body; also, advance warning of pedestrians in cane path.
Title | : | International guide to aids and appliances for blind and visually impaired persons |
Author | : | American Foundation for the Blind, Leslie L. Clark |
Publisher | : | - 1977 |
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